Island



(No Model.)

J. E. GROOK.

ORNAMENTAL CHAIN.

N0.'40'7,723. Patented July 23, 1889.

UNITED STATES PATENT OFFICE.

JOSEPH E. CROOK, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE-HALF TO A. T. \VALL & CO., OF SAME PLACE.

ORNAMENTAL CHAIN.

SPECIFICATION forming part of Letters Patent No. 407,723, dated July 23, 1889.

Application filed December 26, 1888. Serial No. 294,633. (No model.)

To all whom it may concern: 5. The two rings may be sprung into each Be it known that I, JOSEPH E. CROOK, of other with the cut ends in opposite directions 50 the city of Providence, in the county of Provito form the completed link. A chain condence and State of Rhode Island, have instructed of these double rings requires no vented certain new and useful Improvements soldering of the joint, and consequently no in Ornamental Chains, of which the followcleaning, recoloring, and repolishing, which ing is a full, clear, and exact description, refsoldered links require, thus causing great sav- 55 erence being had to the accompanying drawing in the manufacture. The chain is as ings, forming part of this specification. strong as the soldered chain, as the opening This invention has reference to an improveof either ring at the ends is resisted by the ment in the class of ornamental chains known solid part of the other ring. The grooved in the art as rope chains, and is applicable ring may be made of precious metal and the 60 to other ornamental chains. inner ring of inferior metal of the same color.

The invention consists in forming thechain A peculiar and pleasing effect can be proout of links consisting of two rings placed one duced by making the two rings forming each within the other, as will be more fully set forth link of different-colored metal. hereinafter. The form of the links can be varied by Wind- 65 Figure 1 is a view of a wound spiral of the ing the wires on arbors of different cross-secgrooved wire from which the outer ring of the tion. The inner ring may be entirely emlink is made. Fig. 2 is a view of a wound bedded in the grooved ring.

spiral of wire from which the inner ring of The cross-section of the links maybe varied the link is made. Fig. Sis a view of the outer to any desired form. 7 grooved ring, the depth of the groove being Having thus described 1nyinvention,Iclaim shown in broken lines. Fig. 4 is a View of asnewand desireto securebyLettersPatent the inner ring. Fig. 5 is a view of the coin- 1. An ornamental chain composed of links pound ring. Fig. 6 is a sectional view of the consisting of an outer grooved ring. and an compound ring on line 6 6. Fig. 7 is a view inner ring secured in the groove of the outer of a chain made up of the compound links. ring, as described.

In the drawings similar letters of reference 2. A link for an ornamental chain, consist- 0 indicate corresponding parts throughout. ing of an outer ring having a grooved cross- Referring to the drawings, a designates a section and an inner ring, the joints of the grooved wire designed to form the outer ring two rings being placed in opposite points, as of a link. This wire is usually wound on an described. arbor, as is shown in Fig. l, and then out 3. A link for an ornamental chain,consist- 3 5 along the axis of the arbor, so as to form a ing of a grooved outer ring and an inner ring number of rings. partly embedded in the groove of the outer 1) indicates the inner ring. It is made of a ring, the inner portion of the inner ring he wire fitting into the groove of the wire a. ing exposed to view, as and for the purpose This wire is also wound spirally on an arbor, set forth.

40 as shown in Fig. 2, and out to form rings. 4. Achain made up of links each composed Both rings being in the spiral form, the solid of an outer grooved ring and an inner ring ring can be readily inserted into the grooved partly or wholly embedded in the groove of 0 ring. The open ends are placed in the same the outer ring, as described. position, so that the double ring can be read- 45 ily entered into the previously-closed link of JOSEPH E. CROOK. the chain. The rings are now turned on each Witnesses: other, so that the open ends are on opposite JOSEPH A. MILLER, sides of the compound ring, as is shown in Fig. M. F. BLIGH. 

